[System-Keyboard-Lock] Forward navigator functions to RenderFrameHost

third_party/WebKit/Source/modules/keyboard_lock/NavigatorKeyboardLock.h

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef NavigatorKeyboardLock_h
+#define NavigatorKeyboardLock_h
+
+#include "bindings/core/v8/ScriptPromise.h"
+#include "core/frame/Navigator.h"
+#include "platform/Supplementable.h"
+#include "platform/heap/Handle.h"
+#include "platform/heap/Member.h"
+#include "public/platform/modules/keyboard_lock/keyboard_lock.mojom-blink.h"
+#include "wtf/Forward.h"
+
+namespace blink {
+
+class ScriptPromiseResolver;
+
+// The supplement of Navigator to process navigator.requestKeyLock() and
+// navigator.cancelKeyLock() web APIs. This class forwards both requests
+// directly to the browser process through mojo.
+class NavigatorKeyboardLock final
+    : public GarbageCollectedFinalized<NavigatorKeyboardLock>,
+      public Supplement<Navigator> {
+  USING_GARBAGE_COLLECTED_MIXIN(NavigatorKeyboardLock);
+
+ public:
+  static NavigatorKeyboardLock& From(Navigator&);
+
+  static ScriptPromise requestKeyLock(ScriptState*,
+                                      Navigator&,
+                                      const Vector<String>&);
+  static void cancelKeyLock(Navigator&);
+
+  DECLARE_TRACE();
+
+ private:
+  explicit NavigatorKeyboardLock(Navigator&);
+  static const char* SupplementName();
+
+  ScriptPromise requestKeyLock(ScriptState*, const Vector<String>&);
+  void cancelKeyLock();
+
+  void LockRequestFinished(bool, const String&);
+
+  mojom::blink::KeyboardLockServicePtr service_;
+  Member<ScriptPromiseResolver> request_keylock_resolver_;
+};
+
+}  // namespace blink
+
+#endif  // NavigatorKeyboardLock_h